Driving mechanism of electric locomotives



Sept], 1925.

, 1,551,975 J. BUCHLI H DRIVING MECHANISM OF ELECTRIC QOCOMOTIVB FiledFeb. 14. 1923 Patented Sept. l, 1925.

name srarss JACOB BUCHLI, OE BAIDEN, SNITZERLAND, ASSIGNOR T0AKTIENGESELLSCHAFT :eaown, Bovnai: awn 01s.,

or eazonn, swrrzmanannl DRIVING MECHANISM 0}? ELECTRIC LOCOMOTIVES-Application filed February 14, 1923. Serial No. 619,005.

T 0 all whom it may concern.

Be it known that I, Jaoon BUGHLI, a. citizen of the Swiss Republic,residing at No. 2 Felsenstrasse, I Baden, Switzerland, have made certainnew and useful Improvements in the Driving Mechanism of ElectricLocomotives, of which the following is a specification.

This invention has for its object to provide an improved drivingmechanism for electric locomotives.

In this improved driving mechanism the electric motor is rigidly fixedon the main "framing of the locomotive, and it drives, through auniversal coupling, a driving wheel axle which is mounted in. a bogie.

This improved arrangement has the advantage that the main framing (whichis already necessarily very strong) can be utilized for carrying theheavy electric motor, whilst the bogie may be made comparatively light.

An embodiment of the invention is illus trated by way of example in theaccompanying drawings in which Figure 1 is a. side elevation of thelocomotive, from which the toothed wheel gear has been removed by asection taken along the line XX of Figure 2, and

Figure 2 is a vertical crosssection taken along the line Y-Y of Figure1.

In the illustrated example, a is the main -framing of the locomotive inwhich the electric motor Z) is rigidly fixed. This motor drives, throughthe gear consisting of a pinion c and a toothed wheel (Z and through theuniversal coupling 6, the driving axle f with its two driving wheels g.

The bearings h and c of the gear wheels 9 and (Z are rigidly fixed tothe main framing a.

The driving axle f is mounted in bearings in the bogie 70 which iscapable of swivelling around the pin on of the main training and whichis further supported by the tree-running wheel axle n. The universalcoupling 6 is constructed to take up the play of the springs between thedriving wheels 9 and the main framing a, and also the obliquity of thebogie is relatively to the main framing a.

Itis possible to use any coupling for connesting the driving wheel 9 tothe toothed wheel cl providing that it is really movable in alldirections, that is, one which allows of: I. A longitudinal displacementof the ax es 21. ll parallel displacement of the axles, ant

3. An angular setting of the axles. As an example of such a coupling seemy Patent No. 1,298,881, granted April 1, 1919.

What I claim is z-- 1. In a driving mechanism for electrical 2. In adrivingmechanism for electrical bogie-locomotives, the combination withthe main framing of the locomotive, and the locomotive-bogie, of adriving motor rigidly fixed to said main frame, a driving wheel axle insaid bogie, and a universal coupling for transmittingthe driving effortfrom said driving motor to said driving wheel axle in said bogie, asingle toothed wheel transmission gear receiving the driving eftort fromsaid driving motor and transmitting same to said universal coupling,said toothed wheel gear being located outside said driving wheel, and anarm extending from said main framing, comprising bearings for thetoothed wheels of said gear.

3. In a driving mechanism for electrical bogie-locomotives, thecombination with the main framing of the locomotive and thelocomotive-bogie, of a driving motor rigidly fixed to said main frame, adriving wheel axle in said bogie, and a universal coupling locatedbetween a large toothed wheel meshing with a smaller toothed wheel onsaid motor shaft and said driving wheel for transmitting the drivingeffort from said driving motor to said driving wheel axle in said bogie.v p

4:. In a driving mechanism for electrical bogiedocomotives, thecombination with the main framing of the locomotive and thelooomotive-bogie, of a driving motor rigidly fixed to said main frame, adriving Wheel axle in said bogie, a free-running Wheel axle in saidbogie the axle of said driving for transmitting the driving effort fromsaid driving motor to said driving Wheel axle in said bogi'e. the axleof said driving motor being substantially parallel to the driving Wheelaxle and to the main axes of the universal coupling. 10

In testimony whereof I have signed my name to this specification.

JACOB BUCHLI.

